The idea alone makes it a great product. It also works with the ARB air chuck fitting (I didn't want to convert my hoses to another style). I used a brass reducer on each end of their fitting (one for the ARB and one for a brass push lock air hose barn) I did use a zip tie to pull the gas filler a little to the rear to clear the wider ARB fitting. Be sure to use anti-seize on the stainless threads, I had one gall up on me. It's cool that it's hidden and stealth.
(The missing bolt in the pic is the one that froze up on me, I don't have a pic after I replaced it)